Suppose the high tides in Truro, MA occur at 1:00 a.m. and 1:00 p.m., at which times the water is 10 feet above the height of low tide. Low tides occur 6 hours after high tides. Suppose there are two high tides and two low tides every day, and that the height of the water varies sinusoidally. (a) Find a formula for the function y = h(t) that computes the height of the tide above low tide at time t. (In other words, y=0 corresponds to the height of the water at low tide.) %3D (b) What is the tide height at 11:00 a.m.? n